In the past five years, at least 15 mixed martial artists have been issued exemptions to use testosterone, the vast majority revealed or confirmed through public records requests filed by "Outside the Lines."

An "Outside the Lines" investigation this fall has found North Carolina Tech Preparatory Christian Academy to be a unique arrangement on the post-high school athletics scene -- and one playing by its own rules.

Mary Anne Catalano, the former lead assistant to a Canadian doctor accused of treating professional athletes with performance-enhancing drugs, avoided jail time as expected and was sentenced to one year of unsupervised probation.

Investigators for Major League Baseball reached out today in an attempt to gain the cooperation of the former executive assistant to the Toronto-based doctor accused of treating professional athletes with performance-enhancing drugs.

Anthony Galea, a Toronto-based doctor accused of injecting U.S. professional athletes with HGH and other substances, is expected to enter a guilty plea at a hearing Wednesday in federal district court in Buffalo, ESPN.com has learned.

Mary Anne Catalano, a former executive assistant to Dr. Anthony Galea, is scheduled to appear Thursday before a grand jury hearing evidence in a federal smuggling and steroid distribution probe of the sports doctor, a source said.

The former assistant to a Toronto doctor accused of injecting pro athletes with healing substances, including human growth hormone, isn't likely to cooperate with potential investigations by the athletes' pro sports leagues.